This level of HA lays beyond the scope of ACS. I advise you to explore GLB that runs outside of ACS that will direct traffic to the available VMs across regions. Alternatively if you physical network architecture can provide the same L2 segments across regions you can explore keepalived VRRP feature to move the same IP across the set of VMs in different regions. Those floating IPs will need to be managed outside of ACS.
Thanks, Sergey On 1/27/20, 11:55 PM, "Prashant Rai" <prai...@gmail.com> wrote: Hi All, - We have installed Cloudstack on two different regions and both are working fine. - We want to add both regions and have Zone Availability, i.e. if one zone goes down or fail, another zone will take care, and VM's can migrate to that zone. Providing zone HA feature. - Higher availability of the services: users can deploy services across Availability Zones and even if one of the Availability Zones goes down the services are still available to the end-user through VMs deployed in other zones. Please guide.......... Regards, Prashant.